source: tspsg/src/mainwindow.cpp @ 2fcdd7bfdf

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Last change on this file since 2fcdd7bfdf was b0dfe0844e, checked in by Oleksii Serdiuk, 12 years ago

Some Windows specific fixes to be compilable with Qt 5.
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File size: 75.2 KB
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1/*
2 *  TSPSG: TSP Solver and Generator
3 *  Copyright (C) 2007-2012 Oleksii Serdiuk <contacts[at]oleksii[dot]name>
4 *
5 *  $Id: $Format:%h %ai %an$ $
6 *  $URL: http://tspsg.info/ $
7 *
8 *  This file is part of TSPSG.
9 *
10 *  TSPSG is free software: you can redistribute it and/or modify
11 *  it under the terms of the GNU General Public License as published by
12 *  the Free Software Foundation, either version 3 of the License, or
13 *  (at your option) any later version.
14 *
15 *  TSPSG is distributed in the hope that it will be useful,
16 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
17 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18 *  GNU General Public License for more details.
19 *
20 *  You should have received a copy of the GNU General Public License
21 *  along with TSPSG.  If not, see <http://www.gnu.org/licenses/>.
22 */
23
24#include "mainwindow.h"
25
26#ifdef Q_OS_WIN32
27#   include "shobjidl.h"
28#endif
29
30#ifdef _T_T_L_
31#include "_.h"
32_C_ _R_ _Y_ _P_ _T_
33#endif
34
35/*!
36 * \brief Class constructor.
37 * \param parent Main Window parent widget.
38 *
39 *  Initializes Main Window and creates its layout based on target OS.
40 *  Loads TSPSG settings and opens a task file if it was specified as a commandline parameter.
41 */
42MainWindow::MainWindow(QWidget *parent)
43    : QMainWindow(parent)
44{
45    settings = new QSettings(QSettings::IniFormat, QSettings::UserScope, "TSPSG", "tspsg", this);
46
47    if (settings->contains("Style")) {
48QStyle *s = QStyleFactory::create(settings->value("Style").toString());
49        if (s != NULL)
50            QApplication::setStyle(s);
51        else
52            settings->remove("Style");
53    }
54
55    loadLanguage();
56    setupUi();
57    setAcceptDrops(true);
58
59    initDocStyleSheet();
60
61#ifndef QT_NO_PRINTER
62    printer = new QPrinter(QPrinter::HighResolution);
63    settings->beginGroup("Printer");
64QPrinter::PaperSize size = qvariant_cast<QPrinter::PaperSize>(settings->value("PaperSize", DEF_PAGE_SIZE));
65    if (size != QPrinter::Custom) {
66        printer->setPaperSize(size);
67    } else {
68        printer->setPaperSize(QSizeF(settings->value("PaperWidth").toReal(), settings->value("PaperHeight").toReal()),
69                              QPrinter::Millimeter);
70    }
71
72    printer->setOrientation(qvariant_cast<QPrinter::Orientation>(settings->value("PageOrientation", DEF_PAGE_ORIENTATION)));
73    printer->setPageMargins(
74        settings->value("MarginLeft", DEF_MARGIN_LEFT).toReal(),
75        settings->value("MarginTop", DEF_MARGIN_TOP).toReal(),
76        settings->value("MarginRight", DEF_MARGIN_RIGHT).toReal(),
77        settings->value("MarginBottom", DEF_MARGIN_BOTTOM).toReal(),
78        QPrinter::Millimeter);
79    settings->endGroup();
80#endif // QT_NO_PRINTER
81
82#ifdef Q_OS_WINCE_WM
83    currentGeometry = QApplication::desktop()->availableGeometry(0);
84    // We need to react to SIP show/hide and resize the window appropriately
85    connect(QApplication::desktop(), SIGNAL(workAreaResized(int)), SLOT(desktopResized(int)));
86#endif // Q_OS_WINCE_WM
87    connect(actionFileNew, SIGNAL(triggered()), SLOT(actionFileNewTriggered()));
88    connect(actionFileOpen, SIGNAL(triggered()), SLOT(actionFileOpenTriggered()));
89    connect(actionFileSave, SIGNAL(triggered()), SLOT(actionFileSaveTriggered()));
90    connect(actionFileSaveAsTask, SIGNAL(triggered()), SLOT(actionFileSaveAsTaskTriggered()));
91    connect(actionFileSaveAsSolution, SIGNAL(triggered()), SLOT(actionFileSaveAsSolutionTriggered()));
92#ifndef QT_NO_PRINTER
93    connect(actionFilePrintPreview, SIGNAL(triggered()), SLOT(actionFilePrintPreviewTriggered()));
94    connect(actionFilePageSetup, SIGNAL(triggered()), SLOT(actionFilePageSetupTriggered()));
95    connect(actionFilePrint, SIGNAL(triggered()), SLOT(actionFilePrintTriggered()));
96#endif // QT_NO_PRINTER
97#ifndef HANDHELD
98    connect(actionSettingsToolbarsConfigure, SIGNAL(triggered()), SLOT(actionSettingsToolbarsConfigureTriggered()));
99#endif // HANDHELD
100    connect(actionSettingsPreferences, SIGNAL(triggered()), SLOT(actionSettingsPreferencesTriggered()));
101    if (actionHelpCheck4Updates != NULL)
102        connect(actionHelpCheck4Updates, SIGNAL(triggered()), SLOT(actionHelpCheck4UpdatesTriggered()));
103    connect(actionSettingsLanguageAutodetect, SIGNAL(triggered(bool)), SLOT(actionSettingsLanguageAutodetectTriggered(bool)));
104    connect(groupSettingsLanguageList, SIGNAL(triggered(QAction *)), SLOT(groupSettingsLanguageListTriggered(QAction *)));
105    connect(actionSettingsStyleSystem, SIGNAL(triggered(bool)), SLOT(actionSettingsStyleSystemTriggered(bool)));
106    connect(groupSettingsStyleList, SIGNAL(triggered(QAction*)), SLOT(groupSettingsStyleListTriggered(QAction*)));
107    connect(actionHelpOnlineSupport, SIGNAL(triggered()), SLOT(actionHelpOnlineSupportTriggered()));
108    connect(actionHelpReportBug, SIGNAL(triggered()), SLOT(actionHelpReportBugTriggered()));
109    connect(actionHelpAboutQt, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
110    connect(actionHelpAbout, SIGNAL(triggered()), SLOT(actionHelpAboutTriggered()));
111
112    connect(buttonSolve, SIGNAL(clicked()), SLOT(buttonSolveClicked()));
113    connect(buttonRandom, SIGNAL(clicked()), SLOT(buttonRandomClicked()));
114    connect(buttonBackToTask, SIGNAL(clicked()), SLOT(buttonBackToTaskClicked()));
115    connect(spinCities, SIGNAL(valueChanged(int)), SLOT(spinCitiesValueChanged(int)));
116
117#ifndef HANDHELD
118    // Centering main window
119QRect rect = geometry();
120    rect.moveCenter(QApplication::desktop()->availableGeometry(this).center());
121    setGeometry(rect);
122    if (settings->value("SavePos", DEF_SAVEPOS).toBool()) {
123        // Loading of saved window state
124        settings->beginGroup("MainWindow");
125        restoreGeometry(settings->value("Geometry").toByteArray());
126        restoreState(settings->value("State").toByteArray());
127        settings->endGroup();
128    }
129#endif // HANDHELD
130
131    tspmodel = new CTSPModel(this);
132    taskView->setModel(tspmodel);
133    connect(tspmodel, SIGNAL(numCitiesChanged(int)), SLOT(numCitiesChanged(int)));
134    connect(tspmodel, SIGNAL(dataChanged(const QModelIndex &, const QModelIndex &)), SLOT(dataChanged(const QModelIndex &, const QModelIndex &)));
135    connect(tspmodel, SIGNAL(layoutChanged()), SLOT(dataChanged()));
136    if ((QCoreApplication::arguments().count() > 1) && (tspmodel->loadTask(QCoreApplication::arguments().at(1))))
137        setFileName(QCoreApplication::arguments().at(1));
138    else {
139        setFileName();
140        spinCities->setValue(settings->value("NumCities",DEF_NUM_CITIES).toInt());
141        spinCitiesValueChanged(spinCities->value());
142    }
143    setWindowModified(false);
144
145    if (actionHelpCheck4Updates != NULL) {
146        if (!settings->contains("Check4Updates/Enabled")) {
147            QApplication::setOverrideCursor(QCursor(Qt::ArrowCursor));
148            settings->setValue("Check4Updates/Enabled",
149                QMessageBox::question(this, QCoreApplication::applicationName(),
150                    tr("Would you like %1 to automatically check for updates every %n day(s)?", "", settings->value("Check4Updates/Interval", DEF_UPDATE_CHECK_INTERVAL).toInt()).arg(QCoreApplication::applicationName()),
151                    QMessageBox::Yes | QMessageBox::No
152                ) == QMessageBox::Yes
153            );
154            QApplication::restoreOverrideCursor();
155        }
156        if ((settings->value("Check4Updates/Enabled", DEF_CHECK_FOR_UPDATES).toBool())
157            && (QDate(qvariant_cast<QDate>(settings->value("Check4Updates/LastAttempt"))).daysTo(QDate::currentDate()) >= settings->value("Check4Updates/Interval", DEF_UPDATE_CHECK_INTERVAL).toInt())) {
158            check4Updates(true);
159        }
160    }
161}
162
163MainWindow::~MainWindow()
164{
165#ifndef QT_NO_PRINTER
166    delete printer;
167#endif
168}
169
170/* Privates **********************************************************/
171
172void MainWindow::actionFileNewTriggered()
173{
174    if (!maybeSave())
175        return;
176    QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
177    tspmodel->clear();
178    setFileName();
179    setWindowModified(false);
180    tabWidget->setCurrentIndex(0);
181    solutionText->clear();
182    graph = QPicture();
183    toggleSolutionActions(false);
184    QApplication::restoreOverrideCursor();
185}
186
187void MainWindow::actionFileOpenTriggered()
188{
189    if (!maybeSave())
190        return;
191
192QStringList filters(tr("All Supported Formats") + " (*.tspt *.zkt)");
193    filters.append(tr("%1 Task Files").arg("TSPSG") + " (*.tspt)");
194    filters.append(tr("%1 Task Files").arg("ZKomModRd") + " (*.zkt)");
195    filters.append(tr("All Files") + " (*)");
196
197QString file;
198    if ((fileName == tr("Untitled") + ".tspt") && settings->value("SaveLastUsed", DEF_SAVE_LAST_USED).toBool())
199        file = settings->value(OS"/LastUsed/TaskLoadPath").toString();
200    else
201        file = QFileInfo(fileName).path();
202QFileDialog::Options opts = settings->value("UseNativeDialogs", DEF_USE_NATIVE_DIALOGS).toBool() ? QFileDialog::Options() : QFileDialog::DontUseNativeDialog;
203    file = QFileDialog::getOpenFileName(this, tr("Task Load"), file, filters.join(";;"), NULL, opts);
204    if (file.isEmpty() || !QFileInfo(file).isFile())
205        return;
206    if (settings->value("SaveLastUsed", DEF_SAVE_LAST_USED).toBool())
207        settings->setValue(OS"/LastUsed/TaskLoadPath", QFileInfo(file).path());
208
209    if (!tspmodel->loadTask(file))
210        return;
211    setFileName(file);
212    tabWidget->setCurrentIndex(0);
213    setWindowModified(false);
214    solutionText->clear();
215    toggleSolutionActions(false);
216}
217
218bool MainWindow::actionFileSaveTriggered()
219{
220    if ((fileName == tr("Untitled") + ".tspt") || !fileName.endsWith(".tspt", Qt::CaseInsensitive))
221        return saveTask();
222    else
223        if (tspmodel->saveTask(fileName)) {
224            setWindowModified(false);
225            return true;
226        } else
227            return false;
228}
229
230void MainWindow::actionFileSaveAsTaskTriggered()
231{
232    saveTask();
233}
234
235void MainWindow::actionFileSaveAsSolutionTriggered()
236{
237static QString selectedFile;
238    if (selectedFile.isEmpty()) {
239        if (settings->value("SaveLastUsed", DEF_SAVE_LAST_USED).toBool()) {
240            selectedFile = settings->value(OS"/LastUsed/SolutionSavePath").toString();
241        }
242    } else
243        selectedFile = QFileInfo(selectedFile).path();
244    if (!selectedFile.isEmpty())
245        selectedFile.append("/");
246    if (fileName == tr("Untitled") + ".tspt") {
247#ifndef QT_NO_PRINTER
248        selectedFile += "solution.pdf";
249#else
250        selectedFile += "solution.html";
251#endif // QT_NO_PRINTER
252    } else {
253#ifndef QT_NO_PRINTER
254        selectedFile += QFileInfo(fileName).completeBaseName() + ".pdf";
255#else
256        selectedFile += QFileInfo(fileName).completeBaseName() + ".html";
257#endif // QT_NO_PRINTER
258    }
259
260QStringList filters;
261#ifndef QT_NO_PRINTER
262    filters.append(tr("PDF Files") + " (*.pdf)");
263#endif
264    filters.append(tr("HTML Files") + " (*.html *.htm)");
265    filters.append(tr("Web Archive Files") + " (*.mht *.mhtml)");
266    filters.append(tr("OpenDocument Files") + " (*.odt)");
267    filters.append(tr("All Files") + " (*)");
268
269QFileDialog::Options opts(settings->value("UseNativeDialogs", DEF_USE_NATIVE_DIALOGS).toBool() ? QFileDialog::Options() : QFileDialog::DontUseNativeDialog);
270QString file = QFileDialog::getSaveFileName(this, QString(), selectedFile, filters.join(";;"), NULL, opts);
271    if (file.isEmpty())
272        return;
273    selectedFile = file;
274    if (settings->value("SaveLastUsed", DEF_SAVE_LAST_USED).toBool())
275        settings->setValue(OS"/LastUsed/SolutionSavePath", QFileInfo(selectedFile).path());
276    QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
277#ifndef QT_NO_PRINTER
278    if (selectedFile.endsWith(".pdf", Qt::CaseInsensitive)) {
279        printer->setOutputFileName(selectedFile);
280        solutionText->document()->print(printer);
281        printer->setOutputFileName(QString());
282        QApplication::restoreOverrideCursor();
283        return;
284    }
285#endif
286    QByteArray imgdata;
287    bool mhtml = selectedFile.contains(QRegExp("\\.mht(ml)?$", Qt::CaseInsensitive));
288    bool embed = !mhtml && settings->value("Output/EmbedGraphIntoHTML", DEF_EMBED_GRAPH_INTO_HTML).toBool();
289    if (selectedFile.contains(QRegExp("\\.(html?|mht(ml)?)$", Qt::CaseInsensitive))) {
290        QFile file(selectedFile);
291        if (!file.open(QFile::WriteOnly | QFile::Text)) {
292            QApplication::restoreOverrideCursor();
293            QMessageBox::critical(this, tr("Solution Save"), tr("Unable to save the solution.\nError: %1").arg(file.errorString()));
294            return;
295        }
296
297        QString html = solutionText->document()->toHtml("UTF-8");
298        html.replace(QRegExp("font-family:([^;]*);"),
299                     "font-family:\\1, 'DejaVu Sans Mono', 'Courier New', Courier, monospace;");
300        html.replace(QRegExp("<style ([^>]*)>"), QString("<style \\1>\n"
301                                                         "body { color: %1 }\n"
302                                                         "td { border-style: solid; border-width: 1px; border-color: %2; }")
303                     .arg(settings->value("Output/Colors/Font", DEF_TEXT_COLOR).toString(),
304                          settings->value("Output/Colors/TableBorder", DEF_TABLE_COLOR).toString()));
305
306        QFileInfo fi(selectedFile);
307        QString format = settings->value("Output/GraphImageFormat", DEF_GRAPH_IMAGE_FORMAT).toString();
308#if !defined(NOSVG)
309        if (!QImageWriter::supportedImageFormats().contains(format.toAscii()) && (format != "svg")) {
310#else // NOSVG
311        if (!QImageWriter::supportedImageFormats().contains(format.toAscii())) {
312#endif // NOSVG
313            format = DEF_GRAPH_IMAGE_FORMAT;
314            settings->remove("Output/GraphImageFormat");
315        }
316
317        if (!graph.isNull()) {
318            imgdata = generateImage(format);
319            if (imgdata.isEmpty()) {
320                return;
321            }
322            if (embed) {
323                QString fmt = format;
324                if (format == "svg")
325                    fmt.append("+xml");
326                html.replace(QRegExp("<img\\s+src=\"tspsg://graph.pic\""),
327                             QString("<img src=\"data:image/%1;base64,%2\" alt=\"%3\"")
328                             .arg(fmt, toWrappedBase64(imgdata), tr("Solution Graph")));
329            } else {
330                html.replace(QRegExp("<img\\s+src=\"tspsg://graph.pic\""),
331                             QString("<img src=\"%1\" alt=\"%2\"")
332                             .arg(fi.completeBaseName() + "." + format, tr("Solution Graph")));
333            }
334        }
335
336        // Saving solution text as HTML
337QTextStream ts(&file);
338        ts.setCodec(QTextCodec::codecForName("UTF-8"));
339        QString boundary = QString("------=multipart_boundary.%1").arg(qHash(selectedFile));
340        if (mhtml) {
341            ts << "Content-Type: multipart/related; start=<[email protected]>; boundary=\""
342               << boundary << "\"; type=\"text/html\"" << endl;
343            boundary.prepend("--");
344            ts << "MIME-Version: 1.0" << endl;
345            ts << endl;
346            ts << boundary << endl;
347            ts << "Content-Disposition: inline; filename=" << fi.completeBaseName() << ".html" << endl;
348            ts << "Content-Type: text/html; name=" << fi.completeBaseName() << ".html" << endl;
349            ts << "Content-ID: <[email protected]>" << endl;
350            ts << "Content-Location: " << fi.completeBaseName() << ".html" << endl;
351            ts << "Content-Transfer-Encoding: 8bit" << endl;
352            ts << endl;
353        }
354        ts << html << endl;
355        if (mhtml) {
356            ts << endl << boundary << endl;
357            ts << "Content-Disposition: inline; filename=" << fi.completeBaseName() << "." << format << endl;
358            ts << "Content-Type: image/" << format;
359            if (format == "svg")
360                ts << "+xml";
361            ts << "; name=" << fi.completeBaseName() << "." << format  << endl;
362            ts << "Content-Location: " << fi.completeBaseName() << "." << format << endl;
363            ts << "Content-Transfer-Encoding: Base64" << endl;
364            ts << endl;
365            ts << toWrappedBase64(imgdata) << endl;
366            ts << endl << boundary << "--" << endl;
367        }
368        file.close();
369        if (!embed && !mhtml) {
370            QFile img(fi.path() + "/" + fi.completeBaseName() + "." + format);
371            if (!img.open(QFile::WriteOnly)) {
372                QApplication::restoreOverrideCursor();
373                QMessageBox::critical(this, tr("Solution Save"), tr("Unable to save the solution graph.\nError: %1").arg(img.errorString()));
374                return;
375            }
376            if (img.write(imgdata) != imgdata.size()) {
377                QApplication::restoreOverrideCursor();
378                QMessageBox::critical(this, tr("Solution Save"), tr("Unable to save the solution graph.\nError: %1").arg(img.errorString()));
379            }
380            img.close();
381        }
382    } else {
383QTextDocumentWriter dw(selectedFile);
384        if (!selectedFile.endsWith(".odt",Qt::CaseInsensitive))
385            dw.setFormat("plaintext");
386        if (!dw.write(solutionText->document()))
387            QMessageBox::critical(this, tr("Solution Save"), tr("Unable to save the solution.\nError: %1").arg(dw.device()->errorString()));
388    }
389    QApplication::restoreOverrideCursor();
390}
391
392#ifndef QT_NO_PRINTER
393void MainWindow::actionFilePrintPreviewTriggered()
394{
395QPrintPreviewDialog ppd(printer, this);
396    connect(&ppd,SIGNAL(paintRequested(QPrinter *)),SLOT(printPreview(QPrinter *)));
397    ppd.exec();
398
399qreal l, t, r, b;
400    printer->getPageMargins(&l, &t, &r, &b, QPrinter::Millimeter);
401
402    settings->beginGroup("Printer");
403    settings->setValue("PaperSize", printer->paperSize());
404    if (printer->paperSize() == QPrinter::Custom) {
405QSizeF size(printer->paperSize(QPrinter::Millimeter));
406        settings->setValue("PaperWidth", size.width());
407        settings->setValue("PaperHeight", size.height());
408    }
409    settings->setValue("PageOrientation", printer->orientation());
410    settings->setValue("MarginLeft", l);
411    settings->setValue("MarginTop", t);
412    settings->setValue("MarginRight", r);
413    settings->setValue("MarginBottom", b);
414    settings->endGroup();
415}
416
417void MainWindow::actionFilePageSetupTriggered()
418{
419QPageSetupDialog psd(printer, this);
420    if (psd.exec() != QDialog::Accepted)
421        return;
422
423qreal l, t, r ,b;
424    printer->getPageMargins(&l, &t, &r, &b, QPrinter::Millimeter);
425
426    settings->beginGroup("Printer");
427    settings->setValue("PaperSize", printer->paperSize());
428    if (printer->paperSize() == QPrinter::Custom) {
429QSizeF size(printer->paperSize(QPrinter::Millimeter));
430        settings->setValue("PaperWidth", size.width());
431        settings->setValue("PaperHeight", size.height());
432    }
433    settings->setValue("PageOrientation", printer->orientation());
434    settings->setValue("MarginLeft", l);
435    settings->setValue("MarginTop", t);
436    settings->setValue("MarginRight", r);
437    settings->setValue("MarginBottom", b);
438    settings->endGroup();
439}
440
441void MainWindow::actionFilePrintTriggered()
442{
443QPrintDialog pd(printer,this);
444    if (pd.exec() != QDialog::Accepted)
445        return;
446    QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
447    solutionText->print(printer);
448    QApplication::restoreOverrideCursor();
449}
450#endif // QT_NO_PRINTER
451
452void MainWindow::actionSettingsPreferencesTriggered()
453{
454SettingsDialog sd(this);
455#ifdef Q_OS_SYMBIAN
456    sd.setWindowState(Qt::WindowMaximized);
457#endif
458    if (sd.exec() != QDialog::Accepted)
459        return;
460    if (sd.colorChanged() || sd.fontChanged()) {
461        if (!solutionText->document()->isEmpty() && sd.colorChanged())
462            QMessageBox::information(this, tr("Settings Changed"), tr("You have changed color settings.\nThey will be applied to the next solution output."));
463        initDocStyleSheet();
464    }
465    if (sd.translucencyChanged() != 0)
466        toggleTranclucency(sd.translucencyChanged() == 1);
467}
468
469void MainWindow::actionSettingsLanguageAutodetectTriggered(bool checked)
470{
471    if (checked) {
472        settings->remove("Language");
473        QMessageBox::information(this, tr("Language change"), tr("Language will be autodetected on the next %1 start.").arg(QCoreApplication::applicationName()));
474    } else
475        settings->setValue("Language", groupSettingsLanguageList->checkedAction()->data().toString());
476}
477
478void MainWindow::groupSettingsLanguageListTriggered(QAction *action)
479{
480#ifndef Q_WS_MAEMO_5
481    if (actionSettingsLanguageAutodetect->isChecked())
482        actionSettingsLanguageAutodetect->trigger();
483#endif
484bool untitled = (fileName == tr("Untitled") + ".tspt");
485    if (loadLanguage(action->data().toString())) {
486        QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
487        settings->setValue("Language",action->data().toString());
488        retranslateUi();
489        if (untitled)
490            setFileName();
491#ifndef HANDHELD
492        if (QtWin::isCompositionEnabled() && settings->value("UseTranslucency", DEF_USE_TRANSLUCENCY).toBool())  {
493            toggleStyle(labelVariant, true);
494            toggleStyle(labelCities, true);
495        }
496#endif
497        QApplication::restoreOverrideCursor();
498        if (!solutionText->document()->isEmpty())
499            QMessageBox::information(this, tr("Settings Changed"), tr("You have changed the application language.\nTo get current solution output in the new language\nyou need to re-run the solution process."));
500    }
501}
502
503void MainWindow::actionSettingsStyleSystemTriggered(bool checked)
504{
505    if (checked) {
506        settings->remove("Style");
507        QMessageBox::information(this, tr("Style Change"), tr("To apply the default style you need to restart %1.").arg(QCoreApplication::applicationName()));
508    } else {
509        settings->setValue("Style", groupSettingsStyleList->checkedAction()->text());
510    }
511}
512
513void MainWindow::groupSettingsStyleListTriggered(QAction *action)
514{
515QStyle *s = QStyleFactory::create(action->text());
516    if (s != NULL) {
517        QApplication::setStyle(s);
518        settings->setValue("Style", action->text());
519        actionSettingsStyleSystem->setChecked(false);
520    }
521}
522
523#ifndef HANDHELD
524void MainWindow::actionSettingsToolbarsConfigureTriggered()
525{
526QtToolBarDialog dlg(this);
527    dlg.setToolBarManager(toolBarManager);
528    dlg.exec();
529QToolButton *tb = static_cast<QToolButton *>(toolBarMain->widgetForAction(actionFileSave));
530    if (tb != NULL) {
531        tb->setMenu(menuFileSaveAs);
532        tb->setPopupMode(QToolButton::MenuButtonPopup);
533        tb->resize(tb->sizeHint());
534    }
535
536    loadToolbarList();
537}
538#endif // HANDHELD
539
540void MainWindow::actionHelpCheck4UpdatesTriggered()
541{
542    if (!hasUpdater()) {
543        QMessageBox::warning(this, tr("Unsupported Feature"), tr("Sorry, but this feature is not supported on your\nplatform or support for it was not installed."));
544        return;
545    }
546
547    check4Updates();
548}
549
550void MainWindow::actionHelpAboutTriggered()
551{
552    QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
553
554QString title;
555    title += QString("<b>%1</b><br>").arg(QCoreApplication::applicationName());
556    title += QString("%1: <b>%2</b><br>").arg(tr("Version"), QCoreApplication::applicationVersion());
557#ifndef HANDHELD
558    title += QString("<b>&copy; 2007-%1 <a href=\"http://%2/\">%3</a></b><br>").arg(QDate::currentDate().toString("yyyy"), QCoreApplication::organizationDomain(), QCoreApplication::organizationName());
559#endif // HANDHELD
560    title += QString("<b><a href=\"http://tspsg.info/\">http://tspsg.info/</a></b>");
561
562QString about;
563    about += QString("%1: <b>%2</b><br>").arg(tr("Target OS (ARCH)"), PLATFROM);
564    about += QString("%1:<br>").arg(tr("Qt library"));
565    about += QString("&nbsp;&nbsp;&nbsp;&nbsp;%1: <b>%2</b><br>").arg(tr("Build time"), QT_VERSION_STR);
566    about += QString("&nbsp;&nbsp;&nbsp;&nbsp;%1: <b>%2</b><br>").arg(tr("Runtime"), qVersion());
567    about.append(QString("%1: <b>%2x%3</b><br>").arg(tr("Logical screen DPI")).arg(logicalDpiX()).arg(logicalDpiY()));
568QString tag;
569#ifdef REVISION_STR
570    tag = tr(" from git revision <b>%1</b>").arg(QString(REVISION_STR).left(10));
571#endif
572    about += tr("Build <b>%1</b>, built%5 on <b>%2</b> at <b>%3</b> with <b>%4</b> compiler.").arg(BUILD_NUMBER).arg(__DATE__).arg(__TIME__).arg(COMPILER).arg(tag) + "<br>";
573    about += QString("%1: <b>%2</b><br>").arg(tr("Algorithm"), CTSPSolver::getVersionId());
574    about += "<br>";
575    about += tr("This program is free software: you can redistribute it and/or modify<br>\n"
576        "it under the terms of the GNU General Public License as published by<br>\n"
577        "the Free Software Foundation, either version 3 of the License, or<br>\n"
578        "(at your option) any later version.<br>\n"
579        "<br>\n"
580        "This program is distributed in the hope that it will be useful,<br>\n"
581        "but WITHOUT ANY WARRANTY; without even the implied warranty of<br>\n"
582        "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the<br>\n"
583        "GNU General Public License for more details.<br>\n"
584        "<br>\n"
585        "You should have received a copy of the GNU General Public License<br>\n"
586        "along with TSPSG.  If not, see <a href=\"http://www.gnu.org/licenses/\">www.gnu.org/licenses/</a>.");
587
588QString credits;
589    credits += tr("%1 was created using <b>Qt&nbsp;framework</b> licensed "
590        "under the terms of the GNU Lesser General Public License,<br>\n"
591        "see <a href=\"http://qt.nokia.com/\">qt.nokia.com</a><br>\n"
592        "<br>\n"
593        "Most icons used in %1 are part of <b>Oxygen&nbsp;Icons</b> project "
594        "licensed according to the GNU Lesser General Public License,<br>\n"
595        "see <a href=\"http://www.oxygen-icons.org/\">www.oxygen-icons.org</a><br>\n"
596        "<br>\n"
597        "Country flag icons used in %1 are part of the free "
598        "<b>Flag&nbsp;Icons</b> collection created by <b>IconDrawer</b>,<br>\n"
599        "see <a href=\"http://www.icondrawer.com/\">www.icondrawer.com</a><br>\n"
600        "<br>\n"
601        "%1 comes with the default \"embedded\" font <b>DejaVu&nbsp;LGC&nbsp;Sans&nbsp;"
602        "Mono</b> from the <b>DejaVu fonts</b> licensed under a Free license</a>,<br>\n"
603        "see <a href=\"http://dejavu-fonts.org/\">dejavu-fonts.org</a>")
604            .arg("TSPSG");
605
606QFile f(":/files/COPYING");
607    f.open(QIODevice::ReadOnly);
608
609QString translation = QCoreApplication::translate("--------", "AUTHORS %1", "Please, provide translator credits here. %1 will be replaced with VERSION");
610    if ((translation != "AUTHORS %1") && (translation.contains("%1"))) {
611QString about = QCoreApplication::translate("--------", "VERSION", "Please, provide your translation version here.");
612        if (about != "VERSION")
613            translation = translation.arg(about);
614    }
615
616QDialog *dlg = new QDialog(this);
617QLabel *lblIcon = new QLabel(dlg),
618    *lblTitle = new QLabel(dlg);
619#ifdef HANDHELD
620QLabel *lblSubTitle = new QLabel(QString("<b>&copy; 2007-%1 <a href=\"http://%2/\">%3</a></b>").arg(QDate::currentDate().toString("yyyy"), QCoreApplication::organizationDomain(), QCoreApplication::organizationName()), dlg);
621#endif // HANDHELD
622QTabWidget *tabs = new QTabWidget(dlg);
623QTextBrowser *txtAbout = new QTextBrowser(dlg);
624QTextBrowser *txtLicense = new QTextBrowser(dlg);
625QTextBrowser *txtCredits = new QTextBrowser(dlg);
626QVBoxLayout *vb = new QVBoxLayout();
627QHBoxLayout *hb1 = new QHBoxLayout(),
628    *hb2 = new QHBoxLayout();
629QDialogButtonBox *bb = new QDialogButtonBox(QDialogButtonBox::Ok, Qt::Horizontal, dlg);
630
631    lblTitle->setOpenExternalLinks(true);
632    lblTitle->setText(title);
633    lblTitle->setAlignment(Qt::AlignTop);
634    lblTitle->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);
635#ifndef HANDHELD
636    lblTitle->setStyleSheet(QString("QLabel {background-color: %1; border-color: %2; border-width: 1px; border-style: solid; border-radius: 4px; padding: 1px;}").arg(palette().alternateBase().color().name(), palette().shadow().color().name()));
637#endif // HANDHELD
638
639    lblIcon->setPixmap(QPixmap(":/images/tspsg.png").scaledToHeight(lblTitle->sizeHint().height(), Qt::SmoothTransformation));
640    lblIcon->setAlignment(Qt::AlignVCenter);
641#ifndef HANDHELD
642    lblIcon->setStyleSheet(QString("QLabel {background-color: white; border-color: %1; border-width: 1px; border-style: solid; border-radius: 4px; padding: 1px;}").arg(palette().windowText().color().name()));
643#endif // HANDHELD
644
645    hb1->addWidget(lblIcon);
646    hb1->addWidget(lblTitle);
647
648    txtAbout->setWordWrapMode(QTextOption::NoWrap);
649    txtAbout->setOpenExternalLinks(true);
650    txtAbout->setHtml(about);
651    txtAbout->moveCursor(QTextCursor::Start);
652    txtAbout->setFrameShape(QFrame::NoFrame);
653
654//      txtCredits->setWordWrapMode(QTextOption::NoWrap);
655    txtCredits->setOpenExternalLinks(true);
656    txtCredits->setHtml(credits);
657    txtCredits->moveCursor(QTextCursor::Start);
658    txtCredits->setFrameShape(QFrame::NoFrame);
659
660    txtLicense->setWordWrapMode(QTextOption::NoWrap);
661    txtLicense->setOpenExternalLinks(true);
662    txtLicense->setText(f.readAll());
663    txtLicense->moveCursor(QTextCursor::Start);
664    txtLicense->setFrameShape(QFrame::NoFrame);
665
666    bb->button(QDialogButtonBox::Ok)->setCursor(QCursor(Qt::PointingHandCursor));
667    bb->button(QDialogButtonBox::Ok)->setIcon(GET_ICON("dialog-ok"));
668
669    hb2->addWidget(bb);
670
671#ifdef Q_OS_WINCE_WM
672    vb->setMargin(3);
673#endif // Q_OS_WINCE_WM
674    vb->addLayout(hb1);
675#ifdef HANDHELD
676    vb->addWidget(lblSubTitle);
677#endif // HANDHELD
678
679    tabs->addTab(txtAbout, tr("About"));
680    tabs->addTab(txtLicense, tr("License"));
681    tabs->addTab(txtCredits, tr("Credits"));
682    if (translation != "AUTHORS %1") {
683QTextBrowser *txtTranslation = new QTextBrowser(dlg);
684//              txtTranslation->setWordWrapMode(QTextOption::NoWrap);
685        txtTranslation->setOpenExternalLinks(true);
686        txtTranslation->setText(translation);
687        txtTranslation->moveCursor(QTextCursor::Start);
688        txtTranslation->setFrameShape(QFrame::NoFrame);
689
690        tabs->addTab(txtTranslation, tr("Translation"));
691    }
692#ifndef HANDHELD
693    tabs->setStyleSheet(QString("QTabWidget::pane {background-color: %1; border-color: %3; border-width: 1px; border-style: solid; border-bottom-left-radius: 4px; border-bottom-right-radius: 4px; padding: 1px;} QTabBar::tab {background-color: %2; border-color: %3; border-width: 1px; border-style: solid; border-bottom: none; border-top-left-radius: 4px; border-top-right-radius: 4px; padding: 2px 6px;} QTabBar::tab:selected {background-color: %4;} QTabBar::tab:!selected {margin-top: 1px;}").arg(palette().base().color().name(), palette().button().color().name(), palette().shadow().color().name(), palette().light().color().name()));
694#endif // HANDHELD
695
696    vb->addWidget(tabs);
697    vb->addLayout(hb2);
698
699    dlg->setWindowFlags(Qt::Dialog | Qt::CustomizeWindowHint | Qt::WindowTitleHint | Qt::WindowCloseButtonHint);
700    dlg->setWindowTitle(tr("About %1").arg(QCoreApplication::applicationName()));
701    dlg->setWindowIcon(GET_ICON("help-about"));
702
703    dlg->setLayout(vb);
704
705    connect(bb, SIGNAL(accepted()), dlg, SLOT(accept()));
706
707#ifndef HANDHELD
708    // Adding some eyecandy
709    if (QtWin::isCompositionEnabled())  {
710        QtWin::enableBlurBehindWindow(dlg, true);
711    }
712#endif // HANDHELD
713
714#ifndef HANDHELD
715    dlg->resize(450, 350);
716#elif defined(Q_OS_SYMBIAN)
717    dlg->setWindowState(Qt::WindowMaximized);
718#endif
719    QApplication::restoreOverrideCursor();
720
721    dlg->exec();
722
723    delete dlg;
724}
725
726void MainWindow::buttonBackToTaskClicked()
727{
728    tabWidget->setCurrentIndex(0);
729}
730
731void MainWindow::buttonRandomClicked()
732{
733    QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
734    tspmodel->randomize();
735    QApplication::restoreOverrideCursor();
736}
737
738void MainWindow::buttonSolveClicked()
739{
740TMatrix matrix;
741QList<double> row;
742int n = spinCities->value();
743bool ok;
744    for (int r = 0; r < n; r++) {
745        row.clear();
746        for (int c = 0; c < n; c++) {
747            row.append(tspmodel->index(r,c).data(Qt::UserRole).toDouble(&ok));
748            if (!ok) {
749                QMessageBox::critical(this, tr("Data error"), tr("Error in cell [Row %1; Column %2]: Invalid data format.").arg(r + 1).arg(c + 1));
750                return;
751            }
752        }
753        matrix.append(row);
754    }
755
756QProgressDialog pd(this);
757QProgressBar *pb = new QProgressBar(&pd);
758    pb->setAlignment(Qt::AlignCenter);
759    pb->setFormat(tr("%v of %1 parts found").arg(n));
760    pd.setBar(pb);
761QPushButton *cancel = new QPushButton(&pd);
762    cancel->setIcon(GET_ICON("dialog-cancel"));
763    cancel->setText(QCoreApplication::translate("QDialogButtonBox", "Cancel", "No need to translate this. The translation will be taken from Qt translation files."));
764    pd.setCancelButton(cancel);
765    pd.setMaximum(n);
766    pd.setAutoReset(false);
767    pd.setLabelText(tr("Calculating optimal route..."));
768    pd.setWindowTitle(tr("Solution Progress"));
769    pd.setWindowModality(Qt::ApplicationModal);
770    pd.setWindowFlags(Qt::Dialog | Qt::CustomizeWindowHint | Qt::WindowTitleHint);
771    pd.show();
772
773#ifdef Q_OS_WIN32
774HRESULT hr = CoCreateInstance(CLSID_TaskbarList, NULL, CLSCTX_INPROC_SERVER, IID_ITaskbarList3, (LPVOID*)&tl);
775    if (SUCCEEDED(hr)) {
776        hr = tl->HrInit();
777        if (FAILED(hr)) {
778            tl->Release();
779            tl = NULL;
780        } else {
781            tl->SetProgressValue(HWND(winId()), 0, n * 2);
782        }
783    }
784#endif
785
786CTSPSolver solver;
787    solver.setCleanupOnCancel(false);
788    connect(&solver, SIGNAL(routePartFound(int)), &pd, SLOT(setValue(int)));
789    connect(&pd, SIGNAL(canceled()), &solver, SLOT(cancel()));
790#ifdef Q_OS_WIN32
791    if (tl != NULL)
792        connect(&solver, SIGNAL(routePartFound(int)), SLOT(solverRoutePartFound(int)));
793#endif
794SStep *root = solver.solve(n, matrix);
795#ifdef Q_OS_WIN32
796    if (tl != NULL)
797        disconnect(&solver, SIGNAL(routePartFound(int)), this, SLOT(solverRoutePartFound(int)));
798#endif
799    disconnect(&solver, SIGNAL(routePartFound(int)), &pd, SLOT(setValue(int)));
800    disconnect(&pd, SIGNAL(canceled()), &solver, SLOT(cancel()));
801    if (!root) {
802        pd.reset();
803        if (!solver.wasCanceled()) {
804#ifdef Q_OS_WIN32
805            if (tl != NULL) {
806                tl->SetProgressState(HWND(winId()), TBPF_ERROR);
807            }
808#endif
809            QApplication::alert(this);
810            QMessageBox::warning(this, tr("Solution Result"), tr("Unable to find a solution.\nMaybe, this task has no solution."));
811        }
812        pd.setLabelText(tr("Memory cleanup..."));
813        pd.setMaximum(0);
814        pd.setCancelButton(NULL);
815        pd.show();
816#ifdef Q_OS_WIN32
817        if (tl != NULL)
818            tl->SetProgressState(HWND(winId()), TBPF_INDETERMINATE);
819#endif
820        QCoreApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
821
822#ifndef QT_NO_CONCURRENT
823QFuture<void> f = QtConcurrent::run(&solver, &CTSPSolver::cleanup, false);
824        while (!f.isFinished()) {
825            QCoreApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
826        }
827#else
828        solver.cleanup(true);
829#endif
830        pd.reset();
831#ifdef Q_OS_WIN32
832        if (tl != NULL) {
833            tl->SetProgressState(HWND(winId()), TBPF_NOPROGRESS);
834            tl->Release();
835            tl = NULL;
836        }
837#endif
838        return;
839    }
840    pb->setFormat(tr("Generating header"));
841    pd.setLabelText(tr("Generating solution output..."));
842    pd.setMaximum(solver.getTotalSteps() + 1);
843    pd.setValue(0);
844
845#ifdef Q_OS_WIN32
846    if (tl != NULL)
847        tl->SetProgressValue(HWND(winId()), spinCities->value(), spinCities->value() + solver.getTotalSteps() + 1);
848#endif
849
850    solutionText->clear();
851    solutionText->setDocumentTitle(tr("Solution of Variant #%1 Task").arg(spinVariant->value()));
852
853QPainter pic;
854bool dograph = settings->value("Output/GenerateGraph", DEF_GENERATE_GRAPH).toBool();
855    if (dograph) {
856        pic.begin(&graph);
857        pic.setRenderHints(QPainter::Antialiasing | QPainter::SmoothPixmapTransform);
858QFont font = qvariant_cast<QFont>(settings->value("Output/Font", QFont(DEF_FONT_FACE)));
859        font.setStyleHint(QFont::TypeWriter);
860        // Font size in pixels = graph node radius / 2.75.
861        // See MainWindow::drawNode() for graph node radius calcualtion description.
862#ifndef Q_OS_SYMBIAN
863        font.setPixelSize(logicalDpiX() * (settings->value("Output/GraphWidth", DEF_GRAPH_WIDTH).toReal() / CM_IN_INCH) / 4.5 / 2.75);
864#else
865        // Also, see again MainWindow::drawNode() for why is additional 1.3 divider added in Symbian.
866        font.setPixelSize(logicalDpiX() * (settings->value("Output/GraphWidth", DEF_GRAPH_WIDTH).toReal() / CM_IN_INCH) / 4.5 / 2.75 / 1.3);
867#endif
868        if (settings->value("Output/HQGraph", DEF_HQ_GRAPH).toBool()) {
869            font.setWeight(QFont::DemiBold);
870            font.setPixelSize(font.pixelSize() * HQ_FACTOR);
871        }
872        pic.setFont(font);
873        pic.setBrush(QBrush(QColor(Qt::white)));
874        if (settings->value("Output/HQGraph", DEF_HQ_GRAPH).toBool()) {
875QPen pen = pic.pen();
876            pen.setWidth(HQ_FACTOR);
877            pic.setPen(pen);
878        }
879        pic.setBackgroundMode(Qt::OpaqueMode);
880    } else {
881        graph = QPicture();
882    }
883
884QTextDocument *doc = solutionText->document();
885QTextCursor cur(doc);
886
887    cur.beginEditBlock();
888    cur.setBlockFormat(fmt_paragraph);
889    cur.insertText(tr("Variant #%1 Task").arg(spinVariant->value()), fmt_default);
890    cur.insertBlock(fmt_paragraph);
891    cur.insertText(tr("Task:"), fmt_default);
892    outputMatrix(cur, matrix);
893    if (dograph) {
894#ifdef _T_T_L_
895        _b_ _i_ _z_ _a_ _r_ _r_ _e_
896#endif
897        drawNode(pic, 0);
898    }
899    cur.insertHtml("<hr>");
900    cur.insertBlock(fmt_paragraph);
901int imgpos = cur.position();
902    cur.insertText(tr("Variant #%1 Solution").arg(spinVariant->value()), fmt_default);
903    cur.endEditBlock();
904
905SStep *step = root;
906int c = n = 1;
907    pb->setFormat(tr("Generating step %v"));
908    while ((step->next != SStep::NoNextStep) && (c < spinCities->value())) {
909        if (pd.wasCanceled()) {
910            pd.setLabelText(tr("Memory cleanup..."));
911            pd.setMaximum(0);
912            pd.setCancelButton(NULL);
913            pd.show();
914            QCoreApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
915#ifdef Q_OS_WIN32
916            if (tl != NULL)
917                tl->SetProgressState(HWND(winId()), TBPF_INDETERMINATE);
918#endif
919#ifndef QT_NO_CONCURRENT
920QFuture<void> f = QtConcurrent::run(&solver, &CTSPSolver::cleanup, false);
921            while (!f.isFinished()) {
922                QCoreApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
923            }
924#else
925            solver.cleanup(true);
926#endif
927            solutionText->clear();
928            toggleSolutionActions(false);
929#ifdef Q_OS_WIN32
930            if (tl != NULL) {
931                tl->SetProgressState(HWND(winId()), TBPF_NOPROGRESS);
932                tl->Release();
933                tl = NULL;
934            }
935#endif
936            return;
937        }
938        pd.setValue(n);
939#ifdef Q_OS_WIN32
940        if (tl != NULL)
941            tl->SetProgressValue(HWND(winId()), spinCities->value() + n, spinCities->value() + solver.getTotalSteps() + 1);
942#endif
943
944        cur.beginEditBlock();
945        cur.insertBlock(fmt_paragraph);
946        cur.insertText(tr("Step #%1").arg(n), fmt_default);
947        if (settings->value("Output/ShowMatrix", DEF_SHOW_MATRIX).toBool() && (!settings->value("Output/UseShowMatrixLimit", DEF_USE_SHOW_MATRIX_LIMIT).toBool() || (settings->value("Output/UseShowMatrixLimit", DEF_USE_SHOW_MATRIX_LIMIT).toBool() && (spinCities->value() <= settings->value("Output/ShowMatrixLimit", DEF_SHOW_MATRIX_LIMIT).toInt())))) {
948            outputMatrix(cur, *step);
949        }
950        if (step->alts.empty())
951            cur.insertBlock(fmt_lastparagraph);
952        else
953            cur.insertBlock(fmt_paragraph);
954        cur.insertText(tr("Selected route %1 %2 part.").arg((step->next == SStep::RightBranch) ? tr("with") : tr("without")).arg(tr("(%1;%2)").arg(step->candidate.nRow + 1).arg(step->candidate.nCol + 1)), fmt_default);
955        if (!step->alts.empty()) {
956            SStep::SCandidate cand;
957            QString alts;
958            foreach(cand, step->alts) {
959                if (!alts.isEmpty())
960                    alts += ", ";
961                alts += tr("(%1;%2)").arg(cand.nRow + 1).arg(cand.nCol + 1);
962            }
963            cur.insertBlock(fmt_lastparagraph);
964            cur.insertText(tr("%n alternate candidate(s) for branching: %1.", "", step->alts.count()).arg(alts), fmt_altlist);
965        }
966        cur.endEditBlock();
967
968        if (dograph) {
969            if (step->prNode != NULL)
970                drawNode(pic, n, false, step->prNode);
971            if (step->plNode != NULL)
972                drawNode(pic, n, true, step->plNode);
973        }
974        n++;
975
976        if (step->next == SStep::RightBranch) {
977            c++;
978            step = step->prNode;
979        } else if (step->next == SStep::LeftBranch) {
980            step = step->plNode;
981        } else
982            break;
983    }
984    pb->setFormat(tr("Generating footer"));
985    pd.setValue(n);
986#ifdef Q_OS_WIN32
987    if (tl != NULL)
988        tl->SetProgressValue(HWND(winId()), spinCities->value() + n, spinCities->value() + solver.getTotalSteps() + 1);
989#endif
990
991    cur.beginEditBlock();
992    cur.insertBlock(fmt_paragraph);
993    if (solver.isOptimal())
994        cur.insertText(tr("Optimal path:"), fmt_default);
995    else
996        cur.insertText(tr("Resulting path:"), fmt_default);
997
998    cur.insertBlock(fmt_paragraph);
999    cur.insertText("  " + solver.getSortedPath(tr("City %1")));
1000
1001    if (solver.isOptimal())
1002        cur.insertBlock(fmt_paragraph);
1003    else
1004        cur.insertBlock(fmt_lastparagraph);
1005    if (isInteger(step->price))
1006        cur.insertHtml("<p>" + tr("The price is <b>%n</b> unit(s).", "", qRound(step->price)) + "</p>");
1007    else
1008        cur.insertHtml("<p>" + tr("The price is <b>%1</b> units.").arg(step->price, 0, 'f', settings->value("Task/FractionalAccuracy", DEF_FRACTIONAL_ACCURACY).toInt()) + "</p>");
1009    if (!solver.isOptimal()) {
1010        cur.insertBlock(fmt_paragraph);
1011        cur.insertHtml("<p>" + tr("<b>WARNING!!!</b><br>This result is a record, but it may not be optimal.<br>Iterations need to be continued to check whether this result is optimal or get an optimal one.") + "</p>");
1012    }
1013    cur.endEditBlock();
1014
1015    if (dograph) {
1016        pic.end();
1017
1018        QImage i(graph.width() + 2, graph.height() + 2, QImage::Format_ARGB32);
1019        i.fill(QColor(255, 255, 255, 0).rgba());
1020        pic.begin(&i);
1021        pic.drawPicture(1, 1, graph);
1022        pic.end();
1023        doc->addResource(QTextDocument::ImageResource, QUrl("tspsg://graph.pic"), i);
1024
1025QTextImageFormat img;
1026        img.setName("tspsg://graph.pic");
1027        if (settings->value("Output/HQGraph", DEF_HQ_GRAPH).toBool()) {
1028            img.setWidth(i.width() / HQ_FACTOR);
1029            img.setHeight(i.height() / HQ_FACTOR);
1030        } else {
1031            img.setWidth(i.width());
1032            img.setHeight(i.height());
1033        }
1034
1035        cur.setPosition(imgpos);
1036        cur.insertImage(img, QTextFrameFormat::FloatRight);
1037    }
1038
1039    if (settings->value("Output/ScrollToEnd", DEF_SCROLL_TO_END).toBool()) {
1040        // Scrolling to the end of the text.
1041        solutionText->moveCursor(QTextCursor::End);
1042    } else
1043        solutionText->moveCursor(QTextCursor::Start);
1044
1045    pd.setLabelText(tr("Memory cleanup..."));
1046    pd.setMaximum(0);
1047    pd.setCancelButton(NULL);
1048    QCoreApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
1049#ifdef Q_OS_WIN32
1050    if (tl != NULL)
1051        tl->SetProgressState(HWND(winId()), TBPF_INDETERMINATE);
1052#endif
1053#ifndef QT_NO_CONCURRENT
1054QFuture<void> f = QtConcurrent::run(&solver, &CTSPSolver::cleanup, false);
1055    while (!f.isFinished()) {
1056        QCoreApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
1057    }
1058#else
1059    solver.cleanup(true);
1060#endif
1061    toggleSolutionActions();
1062    tabWidget->setCurrentIndex(1);
1063#ifdef Q_OS_WIN32
1064    if (tl != NULL) {
1065        tl->SetProgressState(HWND(winId()), TBPF_NOPROGRESS);
1066        tl->Release();
1067        tl = NULL;
1068    }
1069#endif
1070
1071    pd.reset();
1072    QApplication::alert(this, 3000);
1073}
1074
1075void MainWindow::dataChanged()
1076{
1077    setWindowModified(true);
1078}
1079
1080void MainWindow::dataChanged(const QModelIndex &tl, const QModelIndex &br)
1081{
1082    setWindowModified(true);
1083    if (settings->value("Autosize", DEF_AUTOSIZE).toBool()) {
1084        for (int k = tl.row(); k <= br.row(); k++)
1085            taskView->resizeRowToContents(k);
1086        for (int k = tl.column(); k <= br.column(); k++)
1087            taskView->resizeColumnToContents(k);
1088    }
1089}
1090
1091#ifdef Q_OS_WINCE_WM
1092void MainWindow::changeEvent(QEvent *ev)
1093{
1094    if ((ev->type() == QEvent::ActivationChange) && isActiveWindow())
1095        desktopResized(0);
1096
1097    QWidget::changeEvent(ev);
1098}
1099
1100void MainWindow::desktopResized(int screen)
1101{
1102    if ((screen != 0) || !isActiveWindow())
1103        return;
1104
1105QRect availableGeometry = QApplication::desktop()->availableGeometry(0);
1106    if (currentGeometry != availableGeometry) {
1107        QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
1108        /*!
1109         * \hack HACK: This hack checks whether \link QDesktopWidget::availableGeometry() availableGeometry()\endlink's \c top + \c hegiht = \link QDesktopWidget::screenGeometry() screenGeometry()\endlink's \c height.
1110         *  If \c true, the window gets maximized. If we used \c setGeometry() in this case, the bottom of the
1111         *  window would end up being behind the soft buttons. Is this a bug in Qt or Windows Mobile?
1112         */
1113        if ((availableGeometry.top() + availableGeometry.height()) == QApplication::desktop()->screenGeometry().height()) {
1114            setWindowState(windowState() | Qt::WindowMaximized);
1115        } else {
1116            if (windowState() & Qt::WindowMaximized)
1117                setWindowState(windowState() ^ Qt::WindowMaximized);
1118            setGeometry(availableGeometry);
1119        }
1120        currentGeometry = availableGeometry;
1121        QApplication::restoreOverrideCursor();
1122    }
1123}
1124#endif // Q_OS_WINCE_WM
1125
1126void MainWindow::numCitiesChanged(int nCities)
1127{
1128    blockSignals(true);
1129    spinCities->setValue(nCities);
1130    blockSignals(false);
1131}
1132
1133#ifndef QT_NO_PRINTER
1134void MainWindow::printPreview(QPrinter *printer)
1135{
1136    solutionText->print(printer);
1137}
1138#endif // QT_NO_PRINTER
1139
1140#ifdef Q_OS_WIN32
1141void MainWindow::solverRoutePartFound(int n)
1142{
1143    tl->SetProgressValue(HWND(winId()), n, spinCities->value() * 2);
1144}
1145#endif // Q_OS_WIN32
1146
1147void MainWindow::spinCitiesValueChanged(int n)
1148{
1149    QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
1150int count = tspmodel->numCities();
1151    tspmodel->setNumCities(n);
1152    if ((n > count) && settings->value("Autosize", DEF_AUTOSIZE).toBool())
1153        for (int k = count; k < n; k++) {
1154            taskView->resizeColumnToContents(k);
1155            taskView->resizeRowToContents(k);
1156        }
1157    QApplication::restoreOverrideCursor();
1158}
1159
1160void MainWindow::check4Updates(bool silent)
1161{
1162#ifdef Q_OS_WIN32
1163    if (silent)
1164        QProcess::startDetached("updater/Update.exe -name=\"TSPSG: TSP Solver and Generator\" -check=\"freeupdate\" -silentcheck");
1165    else {
1166        QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
1167        QProcess::execute("updater/Update.exe -name=\"TSPSG: TSP Solver and Generator\" -check=\"freeupdate\"");
1168        QApplication::restoreOverrideCursor();
1169    }
1170#else
1171    Q_UNUSED(silent)
1172#endif
1173    settings->setValue("Check4Updates/LastAttempt", QDate::currentDate().toString(Qt::ISODate));
1174}
1175
1176void MainWindow::closeEvent(QCloseEvent *ev)
1177{
1178    if (!maybeSave()) {
1179        ev->ignore();
1180        return;
1181    }
1182    if (!settings->value("SettingsReset", false).toBool()) {
1183        settings->setValue("NumCities", spinCities->value());
1184
1185        // Saving Main Window state
1186#ifndef HANDHELD
1187        if (settings->value("SavePos", DEF_SAVEPOS).toBool()) {
1188            settings->beginGroup("MainWindow");
1189            settings->setValue("Geometry", saveGeometry());
1190            settings->setValue("State", saveState());
1191            settings->setValue("Toolbars", toolBarManager->saveState());
1192            settings->endGroup();
1193        }
1194#else
1195        settings->setValue("MainWindow/ToolbarVisible", toolBarMain->isVisible());
1196#endif // HANDHELD
1197    } else {
1198        settings->remove("SettingsReset");
1199    }
1200
1201    QMainWindow::closeEvent(ev);
1202}
1203
1204void MainWindow::dragEnterEvent(QDragEnterEvent *ev)
1205{
1206    if (ev->mimeData()->hasUrls() && (ev->mimeData()->urls().count() == 1)) {
1207QFileInfo fi(ev->mimeData()->urls().first().toLocalFile());
1208        if ((fi.suffix() == "tspt") || (fi.suffix() == "zkt"))
1209            ev->acceptProposedAction();
1210    }
1211}
1212
1213void MainWindow::drawNode(QPainter &pic, int nstep, bool left, SStep *step)
1214{
1215qreal r; // Radius of graph node
1216    // We calculate r from the full graph width in centimeters:
1217    //   r = width in pixels / 4.5.
1218    //   width in pixels = DPI * width in inches.
1219    //   width in inches = width in cm / cm in inch.
1220    r = logicalDpiX() * (settings->value("Output/GraphWidth", DEF_GRAPH_WIDTH).toReal() / CM_IN_INCH) / 4.5;
1221    if (settings->value("Output/HQGraph", DEF_HQ_GRAPH).toBool())
1222        r *= HQ_FACTOR;
1223#ifdef Q_OS_SYMBIAN
1224    /*! \hack HACK: Solution graph on Symbian is visually larger than on
1225     *   Windows Mobile. This coefficient makes it about the same size.
1226     */
1227    r /= 1.3;
1228#endif
1229
1230qreal x, y;
1231    if (step != NULL)
1232        x = left ? r : r * 3.5;
1233    else
1234        x = r * 2.25;
1235    y = r * (3 * nstep + 1);
1236
1237#ifdef _T_T_L_
1238    if (nstep == -481124) {
1239        _t_t_l_(pic, r, x);
1240        return;
1241    }
1242#endif
1243
1244    pic.drawEllipse(QPointF(x, y), r, r);
1245
1246    if (step != NULL) {
1247QFont font;
1248        if (left) {
1249            font = pic.font();
1250            font.setStrikeOut(true);
1251            pic.setFont(font);
1252        }
1253        pic.drawText(QRectF(x - r, y - r, r * 2, r * 2), Qt::AlignCenter, tr("(%1;%2)").arg(step->pNode->candidate.nRow + 1).arg(step->pNode->candidate.nCol + 1) + "\n");
1254        if (left) {
1255            font.setStrikeOut(false);
1256            pic.setFont(font);
1257        }
1258        if (step->price != INFINITY) {
1259            pic.drawText(QRectF(x - r, y - r, r * 2, r * 2), Qt::AlignCenter, isInteger(step->price) ? QString("\n%1").arg(step->price) : QString("\n%1").arg(step->price, 0, 'f', settings->value("Task/FractionalAccuracy", DEF_FRACTIONAL_ACCURACY).toInt()));
1260        } else {
1261            pic.drawText(QRectF(x - r, y - r, r * 2, r * 2), Qt::AlignCenter, "\n"INFSTR);
1262        }
1263    } else {
1264        pic.drawText(QRectF(x - r, y - r, r * 2, r * 2), Qt::AlignCenter, tr("Root"));
1265    }
1266
1267    if (nstep == 1) {
1268        pic.drawLine(QPointF(x, y - r), QPointF(r * 2.25, y - 2 * r));
1269    } else if (nstep > 1) {
1270        pic.drawLine(QPointF(x, y - r), QPointF((step->pNode->pNode->next == SStep::RightBranch) ? r * 3.5 : r, y - 2 * r));
1271    }
1272
1273}
1274
1275void MainWindow::dropEvent(QDropEvent *ev)
1276{
1277    if (maybeSave() && tspmodel->loadTask(ev->mimeData()->urls().first().toLocalFile())) {
1278        setFileName(ev->mimeData()->urls().first().toLocalFile());
1279        tabWidget->setCurrentIndex(0);
1280        setWindowModified(false);
1281        solutionText->clear();
1282        toggleSolutionActions(false);
1283
1284        ev->setDropAction(Qt::CopyAction);
1285        ev->accept();
1286    }
1287}
1288
1289QByteArray MainWindow::generateImage(const QString &format)
1290{
1291    if (graph.isNull())
1292        return QByteArray();
1293
1294    QByteArray data;
1295    QBuffer buf(&data);
1296    // Saving solution graph in SVG or supported raster format (depending on settings and SVG support)
1297#if !defined(NOSVG)
1298    if (format == "svg") {
1299        QSvgGenerator svg;
1300        svg.setSize(QSize(graph.width() + 2, graph.height() + 2));
1301        svg.setResolution(graph.logicalDpiX());
1302        svg.setOutputDevice(&buf);
1303        svg.setTitle(tr("Solution Graph"));
1304        svg.setDescription(tr("Generated with %1").arg(QCoreApplication::applicationName()));
1305        QPainter p;
1306        p.begin(&svg);
1307        p.drawPicture(1, 1, graph);
1308        p.end();
1309    } else {
1310#endif // NOSVG
1311        QImage i(graph.width() + 2, graph.height() + 2, QImage::Format_ARGB32);
1312        i.fill(0x00FFFFFF);
1313        QPainter p;
1314        p.begin(&i);
1315        p.drawPicture(1, 1, graph);
1316        p.end();
1317        QImageWriter pic;
1318        pic.setDevice(&buf);
1319        pic.setFormat(format.toAscii());
1320        if (pic.supportsOption(QImageIOHandler::Description)) {
1321            pic.setText("Title", "Solution Graph");
1322            pic.setText("Software", QCoreApplication::applicationName());
1323        }
1324        if (format == "png")
1325            pic.setQuality(5);
1326        else if (format == "jpeg")
1327            pic.setQuality(80);
1328        if (!pic.write(i)) {
1329            QApplication::restoreOverrideCursor();
1330            QMessageBox::critical(this, tr("Solution Save"), tr("Unable to save the solution graph.\nError: %1").arg(pic.errorString()));
1331            return QByteArray();
1332        }
1333#if !defined(NOSVG)
1334    }
1335#endif // NOSVG
1336    return data;
1337}
1338
1339void MainWindow::initDocStyleSheet()
1340{
1341    solutionText->document()->setDefaultFont(qvariant_cast<QFont>(settings->value("Output/Font", QFont(DEF_FONT_FACE, DEF_FONT_SIZE))));
1342
1343    fmt_paragraph.setTopMargin(5);
1344    fmt_paragraph.setRightMargin(10);
1345    fmt_paragraph.setBottomMargin(0);
1346    fmt_paragraph.setLeftMargin(10);
1347
1348    fmt_lastparagraph.setTopMargin(5);
1349    fmt_lastparagraph.setRightMargin(10);
1350    fmt_lastparagraph.setBottomMargin(15);
1351    fmt_lastparagraph.setLeftMargin(10);
1352
1353    settings->beginGroup("Output/Colors");
1354
1355    fmt_table.setTopMargin(5);
1356    fmt_table.setRightMargin(10);
1357    fmt_table.setBottomMargin(0);
1358    fmt_table.setLeftMargin(10);
1359    fmt_table.setBorder(1);
1360    fmt_table.setBorderBrush(QBrush(QColor(settings->value("TableBorder", DEF_TABLE_COLOR).toString())));
1361    fmt_table.setBorderStyle(QTextFrameFormat::BorderStyle_Solid);
1362    fmt_table.setCellSpacing(0);
1363    fmt_table.setCellPadding(2);
1364
1365    fmt_cell.setAlignment(Qt::AlignHCenter);
1366
1367QColor color = QColor(settings->value("Text", DEF_TEXT_COLOR).toString());
1368QColor hilight;
1369    if (color.value() < 192)
1370        hilight.setHsv(color.hue(), color.saturation(), 127 + (color.value() / 2));
1371    else
1372        hilight.setHsv(color.hue(), color.saturation(), color.value() / 2);
1373
1374#ifdef Q_OS_SYMBIAN
1375    /*!
1376     * \hack HACK: Fixing some weird behavior with default Symbian theme
1377     *  when text and background have the same color.
1378     */
1379    if (color != DEF_TEXT_COLOR) {
1380#endif
1381    solutionText->document()->setDefaultStyleSheet(QString("* {color: %1;}").arg(color.name()));
1382    fmt_default.setForeground(QBrush(color));
1383#ifdef Q_OS_SYMBIAN
1384    }
1385#endif
1386
1387    fmt_selected.setForeground(QBrush(QColor(settings->value("Selected", DEF_SELECTED_COLOR).toString())));
1388    fmt_selected.setFontWeight(QFont::Bold);
1389
1390    fmt_alternate.setForeground(QBrush(QColor(settings->value("Alternate", DEF_ALTERNATE_COLOR).toString())));
1391    fmt_alternate.setFontWeight(QFont::Bold);
1392    fmt_altlist.setForeground(QBrush(hilight));
1393
1394    settings->endGroup();
1395}
1396
1397void MainWindow::loadLangList()
1398{
1399QMap<QString, QStringList> langlist;
1400QFileInfoList langs;
1401QFileInfo lang;
1402QStringList language, dirs;
1403QTranslator t;
1404QDir dir;
1405    dir.setFilter(QDir::Files);
1406    dir.setNameFilters(QStringList("tspsg_*.qm"));
1407    dir.setSorting(QDir::NoSort);
1408
1409    dirs << PATH_L10N << ":/l10n";
1410    foreach (QString dirname, dirs) {
1411        dir.setPath(dirname);
1412        if (dir.exists()) {
1413            langs = dir.entryInfoList();
1414            for (int k = 0; k < langs.size(); k++) {
1415                lang = langs.at(k);
1416                if (lang.completeBaseName().compare("tspsg_en", Qt::CaseInsensitive) && !langlist.contains(lang.completeBaseName().mid(6)) && t.load(lang.completeBaseName(), dirname)) {
1417
1418                    language.clear();
1419                    language.append(lang.completeBaseName().mid(6));
1420                    language.append(t.translate("--------", "COUNTRY", "Please, provide an ISO 3166-1 alpha-2 country code for this translation language here (eg., UA).").toLower());
1421                    language.append(t.translate("--------", "LANGNAME", "Please, provide a native name of your translation language here."));
1422                    language.append(t.translate("MainWindow", "Set application language to %1", "").arg(language.at(2)));
1423
1424                    langlist.insert(language.at(0), language);
1425                }
1426            }
1427        }
1428    }
1429
1430QAction *a;
1431    foreach (language, langlist) {
1432        a = menuSettingsLanguage->addAction(language.at(2));
1433#ifndef QT_NO_STATUSTIP
1434        a->setStatusTip(language.at(3));
1435#endif
1436#if QT_VERSION >= QT_VERSION_CHECK(4,6,0)
1437        a->setIcon(QIcon::fromTheme(QString("flag-%1").arg(language.at(1)), QIcon(QString(":/images/icons/l10n/flag-%1.png").arg(language.at(1)))));
1438#else
1439        a->setIcon(QIcon(QString(":/images/icons/l10n/flag-%1.png").arg(language.at(1))));
1440#endif
1441        a->setData(language.at(0));
1442        a->setCheckable(true);
1443        a->setActionGroup(groupSettingsLanguageList);
1444        if (settings->value("Language", QLocale::system().name()).toString().startsWith(language.at(0)))
1445            a->setChecked(true);
1446    }
1447}
1448
1449bool MainWindow::loadLanguage(const QString &lang)
1450{
1451// i18n
1452bool ad = false;
1453QString lng = lang;
1454    if (lng.isEmpty()) {
1455        ad = settings->value("Language").toString().isEmpty();
1456        lng = settings->value("Language", QLocale::system().name()).toString();
1457    }
1458static QTranslator *qtTranslator; // Qt library translator
1459    if (qtTranslator) {
1460        qApp->removeTranslator(qtTranslator);
1461        delete qtTranslator;
1462        qtTranslator = NULL;
1463    }
1464static QTranslator *translator; // Application translator
1465    if (translator) {
1466        qApp->removeTranslator(translator);
1467        delete translator;
1468        translator = NULL;
1469    }
1470
1471    if (lng == "en")
1472        return true;
1473
1474    // Trying to load system Qt library translation...
1475    qtTranslator = new QTranslator(this);
1476    if (qtTranslator->load("qt_" + lng, QLibraryInfo::location(QLibraryInfo::TranslationsPath))) {
1477        qApp->installTranslator(qtTranslator);
1478    } else {
1479        // Qt library translation unavailable for this language.
1480        delete qtTranslator;
1481        qtTranslator = NULL;
1482    }
1483
1484    // Now let's load application translation.
1485    translator = new QTranslator(this);
1486    if (translator->load("tspsg_" + lng, PATH_L10N)) {
1487        // We have a translation in the localization directory.
1488        qApp->installTranslator(translator);
1489    } else if (translator->load("tspsg_" + lng, ":/l10n")) {
1490        // We have a translation "built-in" into application resources.
1491        qApp->installTranslator(translator);
1492    } else {
1493        delete translator;
1494        translator = NULL;
1495        if (!ad) {
1496            settings->remove("Language");
1497            QApplication::setOverrideCursor(QCursor(Qt::ArrowCursor));
1498            QMessageBox::warning(isVisible() ? this : NULL, tr("Language Change"), tr("Unable to load the translation language.\nFalling back to autodetection."));
1499            QApplication::restoreOverrideCursor();
1500        }
1501        return false;
1502    }
1503    return true;
1504}
1505
1506void MainWindow::loadStyleList()
1507{
1508    menuSettingsStyle->clear();
1509QStringList styles = QStyleFactory::keys();
1510    menuSettingsStyle->insertAction(NULL, actionSettingsStyleSystem);
1511    actionSettingsStyleSystem->setChecked(!settings->contains("Style"));
1512    menuSettingsStyle->addSeparator();
1513QAction *a;
1514    foreach (QString style, styles) {
1515        a = menuSettingsStyle->addAction(style);
1516        a->setData(false);
1517#ifndef QT_NO_STATUSTIP
1518        a->setStatusTip(tr("Set application style to %1").arg(style));
1519#endif
1520        a->setCheckable(true);
1521        a->setActionGroup(groupSettingsStyleList);
1522        if ((style == settings->value("Stlye").toString())
1523#ifndef Q_WS_MAEMO_5
1524            || QString(QApplication::style()->metaObject()->className()).contains(QRegExp(QString("^Q?%1(Style)?$").arg(QRegExp::escape(style)), Qt::CaseInsensitive))
1525#endif
1526        ) {
1527            a->setChecked(true);
1528        }
1529    }
1530}
1531
1532void MainWindow::loadToolbarList()
1533{
1534    menuSettingsToolbars->clear();
1535#ifndef HANDHELD
1536    menuSettingsToolbars->insertAction(NULL, actionSettingsToolbarsConfigure);
1537    menuSettingsToolbars->addSeparator();
1538QList<QToolBar *> list = toolBarManager->toolBars();
1539    foreach (QToolBar *t, list) {
1540        menuSettingsToolbars->insertAction(NULL, t->toggleViewAction());
1541    }
1542#else // HANDHELD
1543    menuSettingsToolbars->insertAction(NULL, toolBarMain->toggleViewAction());
1544#endif // HANDHELD
1545}
1546
1547bool MainWindow::maybeSave()
1548{
1549    if (!isWindowModified())
1550        return true;
1551#ifdef Q_OS_SYMBIAN
1552    int res = QSMessageBox(this).exec();
1553#else
1554    int res = QMessageBox::warning(this, tr("Unsaved Changes"), tr("Would you like to save changes in the current task?"), QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel);
1555#endif
1556    if (res == QMessageBox::Save)
1557        return actionFileSaveTriggered();
1558    else if (res == QMessageBox::Cancel)
1559        return false;
1560    else
1561        return true;
1562}
1563
1564void MainWindow::outputMatrix(QTextCursor &cur, const TMatrix &matrix)
1565{
1566int n = spinCities->value();
1567QTextTable *table = cur.insertTable(n, n, fmt_table);
1568
1569    for (int r = 0; r < n; r++) {
1570        for (int c = 0; c < n; c++) {
1571            cur = table->cellAt(r, c).firstCursorPosition();
1572            cur.setBlockFormat(fmt_cell);
1573            cur.setBlockCharFormat(fmt_default);
1574            if (matrix.at(r).at(c) == INFINITY)
1575                cur.insertText(INFSTR);
1576            else
1577                cur.insertText(isInteger(matrix.at(r).at(c)) ? QString("%1").arg(matrix.at(r).at(c)) : QString("%1").arg(matrix.at(r).at(c), 0, 'f', settings->value("Task/FractionalAccuracy", DEF_FRACTIONAL_ACCURACY).toInt()));
1578        }
1579        QCoreApplication::processEvents();
1580    }
1581    cur.movePosition(QTextCursor::End);
1582}
1583
1584void MainWindow::outputMatrix(QTextCursor &cur, const SStep &step)
1585{
1586int n = spinCities->value();
1587QTextTable *table = cur.insertTable(n, n, fmt_table);
1588
1589    for (int r = 0; r < n; r++) {
1590        for (int c = 0; c < n; c++) {
1591            cur = table->cellAt(r, c).firstCursorPosition();
1592            cur.setBlockFormat(fmt_cell);
1593            if (step.matrix.at(r).at(c) == INFINITY)
1594                cur.insertText(INFSTR, fmt_default);
1595            else if ((r == step.candidate.nRow) && (c == step.candidate.nCol))
1596                cur.insertText(isInteger(step.matrix.at(r).at(c)) ? QString("%1").arg(step.matrix.at(r).at(c)) : QString("%1").arg(step.matrix.at(r).at(c), 0, 'f', settings->value("Task/FractionalAccuracy", DEF_FRACTIONAL_ACCURACY).toInt()), fmt_selected);
1597            else {
1598SStep::SCandidate cand;
1599                cand.nRow = r;
1600                cand.nCol = c;
1601                if (step.alts.contains(cand))
1602                    cur.insertText(isInteger(step.matrix.at(r).at(c)) ? QString("%1").arg(step.matrix.at(r).at(c)) : QString("%1").arg(step.matrix.at(r).at(c), 0, 'f', settings->value("Task/FractionalAccuracy", DEF_FRACTIONAL_ACCURACY).toInt()), fmt_alternate);
1603                else
1604                    cur.insertText(isInteger(step.matrix.at(r).at(c)) ? QString("%1").arg(step.matrix.at(r).at(c)) : QString("%1").arg(step.matrix.at(r).at(c), 0, 'f', settings->value("Task/FractionalAccuracy", DEF_FRACTIONAL_ACCURACY).toInt()), fmt_default);
1605            }
1606        }
1607        QCoreApplication::processEvents();
1608    }
1609
1610    cur.movePosition(QTextCursor::End);
1611}
1612
1613#ifdef Q_OS_SYMBIAN
1614void MainWindow::resizeEvent(QResizeEvent *ev)
1615{
1616    static bool tb = toolBarMain->isVisible();
1617    if ((ev->size().width() < ev->size().height())
1618            && (ev->oldSize().width() > ev->oldSize().height())) {
1619        // From landscape to portrait
1620        if (tb)
1621            toolBarMain->show();
1622        setWindowState(Qt::WindowMaximized);
1623    } else if ((ev->size().width() > ev->size().height())
1624               && (ev->oldSize().width() < ev->oldSize().height())) {
1625        // From portrait to landscape
1626        if (tb = toolBarMain->isVisible())
1627            toolBarMain->hide();
1628        setWindowState(Qt::WindowFullScreen);
1629    }
1630
1631    QWidget::resizeEvent(ev);
1632}
1633#endif // Q_OS_SYMBIAN
1634
1635void MainWindow::retranslateUi(bool all)
1636{
1637    if (all)
1638        Ui_MainWindow::retranslateUi(this);
1639
1640    loadStyleList();
1641    loadToolbarList();
1642
1643#ifndef QT_NO_PRINTER
1644    actionFilePrintPreview->setText(tr("P&rint Preview..."));
1645#ifndef QT_NO_TOOLTIP
1646    actionFilePrintPreview->setToolTip(tr("Preview solution results"));
1647#endif // QT_NO_TOOLTIP
1648#ifndef QT_NO_STATUSTIP
1649    actionFilePrintPreview->setStatusTip(tr("Preview current solution results before printing"));
1650#endif // QT_NO_STATUSTIP
1651
1652    actionFilePageSetup->setText(tr("Pa&ge Setup..."));
1653#ifndef QT_NO_TOOLTIP
1654    actionFilePageSetup->setToolTip(tr("Setup print options"));
1655#endif // QT_NO_TOOLTIP
1656#ifndef QT_NO_STATUSTIP
1657    actionFilePageSetup->setStatusTip(tr("Setup page-related options for printing"));
1658#endif // QT_NO_STATUSTIP
1659
1660    actionFilePrint->setText(tr("&Print..."));
1661#ifndef QT_NO_TOOLTIP
1662    actionFilePrint->setToolTip(tr("Print solution"));
1663#endif // QT_NO_TOOLTIP
1664#ifndef QT_NO_STATUSTIP
1665    actionFilePrint->setStatusTip(tr("Print current solution results"));
1666#endif // QT_NO_STATUSTIP
1667    actionFilePrint->setShortcut(tr("Ctrl+P"));
1668#endif // QT_NO_PRINTER
1669
1670#ifndef QT_NO_STATUSTIP
1671    actionFileExit->setStatusTip(tr("Exit %1").arg(QCoreApplication::applicationName()));
1672#endif // QT_NO_STATUSTIP
1673
1674#ifndef HANDHELD
1675    actionSettingsToolbarsConfigure->setText(tr("Configure..."));
1676#ifndef QT_NO_STATUSTIP
1677    actionSettingsToolbarsConfigure->setStatusTip(tr("Customize toolbars"));
1678#endif // QT_NO_STATUSTIP
1679#endif // HANDHELD
1680
1681#ifndef QT_NO_STATUSTIP
1682    actionHelpReportBug->setStatusTip(tr("Report about a bug in %1").arg(QCoreApplication::applicationName()));
1683#endif // QT_NO_STATUSTIP
1684    if (actionHelpCheck4Updates != NULL) {
1685        actionHelpCheck4Updates->setText(tr("Check for &Updates..."));
1686#ifndef QT_NO_STATUSTIP
1687        actionHelpCheck4Updates->setStatusTip(tr("Check for %1 updates").arg(QCoreApplication::applicationName()));
1688#endif // QT_NO_STATUSTIP
1689    }
1690#ifndef QT_NO_STATUSTIP
1691    actionHelpAbout->setStatusTip(tr("About %1").arg(QCoreApplication::applicationName()));
1692#endif // QT_NO_STATUSTIP
1693
1694#ifdef Q_OS_SYMBIAN
1695    actionRightSoftKey->setText(tr("E&xit"));
1696#endif
1697}
1698
1699bool MainWindow::saveTask() {
1700QStringList filters(tr("%1 Task File").arg("TSPSG") + " (*.tspt)");
1701    filters.append(tr("All Files") + " (*)");
1702QString file;
1703    if ((fileName == tr("Untitled") + ".tspt") && settings->value("SaveLastUsed", DEF_SAVE_LAST_USED).toBool()) {
1704        file = settings->value(OS"/LastUsed/TaskSavePath").toString();
1705        if (!file.isEmpty())
1706            file.append("/");
1707        file.append(fileName);
1708    } else if (fileName.endsWith(".tspt", Qt::CaseInsensitive))
1709        file = fileName;
1710    else
1711        file = QFileInfo(fileName).path() + "/" + QFileInfo(fileName).completeBaseName() + ".tspt";
1712
1713QFileDialog::Options opts = settings->value("UseNativeDialogs", DEF_USE_NATIVE_DIALOGS).toBool() ? QFileDialog::Options() : QFileDialog::DontUseNativeDialog;
1714    file = QFileDialog::getSaveFileName(this, tr("Task Save"), file, filters.join(";;"), NULL, opts);
1715    if (file.isEmpty())
1716        return false;
1717    else if (settings->value("SaveLastUsed", DEF_SAVE_LAST_USED).toBool())
1718        settings->setValue(OS"/LastUsed/TaskSavePath", QFileInfo(file).path());
1719    if (QFileInfo(file).suffix().isEmpty()) {
1720        file.append(".tspt");
1721    }
1722
1723    if (tspmodel->saveTask(file)) {
1724        setFileName(file);
1725        setWindowModified(false);
1726        return true;
1727    }
1728    return false;
1729}
1730
1731void MainWindow::setFileName(const QString &fileName)
1732{
1733    this->fileName = fileName;
1734    setWindowTitle(QString("%1[*] - %2").arg(QFileInfo(fileName).completeBaseName()).arg(QCoreApplication::applicationName()));
1735}
1736
1737void MainWindow::setupUi()
1738{
1739    Ui_MainWindow::setupUi(this);
1740
1741#ifdef Q_OS_SYMBIAN
1742    setWindowFlags(windowFlags() | Qt::WindowSoftkeysVisibleHint);
1743#endif // Q_OS_SYMBIAN
1744
1745    // File Menu
1746    actionFileNew->setIcon(GET_ICON("document-new"));
1747    actionFileOpen->setIcon(GET_ICON("document-open"));
1748    actionFileSave->setIcon(GET_ICON("document-save"));
1749#ifndef HANDHELD
1750    menuFileSaveAs->setIcon(GET_ICON("document-save-as"));
1751#endif
1752    actionFileExit->setIcon(GET_ICON("application-exit"));
1753    // Settings Menu
1754#ifndef HANDHELD
1755    menuSettingsLanguage->setIcon(GET_ICON("preferences-desktop-locale"));
1756#if QT_VERSION >= QT_VERSION_CHECK(4,6,0)
1757    actionSettingsLanguageEnglish->setIcon(QIcon::fromTheme("flag-gb", QIcon(":/images/icons/l10n/flag-gb.png")));
1758#else
1759    actionSettingsLanguageEnglish->setIcon(QIcon(":/images/icons/l10n/flag-gb.png"));
1760#endif // QT_VERSION >= QT_VERSION_CHECK(4,6,0)
1761    menuSettingsStyle->setIcon(GET_ICON("preferences-desktop-theme"));
1762#endif // HANDHELD
1763    actionSettingsPreferences->setIcon(GET_ICON("preferences-system"));
1764    // Help Menu
1765#ifndef HANDHELD
1766    actionHelpContents->setIcon(GET_ICON("help-contents"));
1767    actionHelpContextual->setIcon(GET_ICON("help-contextual"));
1768    actionHelpOnlineSupport->setIcon(GET_ICON("applications-internet"));
1769    actionHelpReportBug->setIcon(GET_ICON("tools-report-bug"));
1770    actionHelpAbout->setIcon(GET_ICON("help-about"));
1771#if QT_VERSION < QT_VERSION_CHECK(5,0,0)
1772    actionHelpAboutQt->setIcon(QIcon(":/trolltech/qmessagebox/images/qtlogo-64.png"));
1773#else
1774    actionHelpAboutQt->setIcon(QIcon(":/qt-project.org/qmessagebox/images/qtlogo-64.png"));
1775#endif // QT_VERSION < QT_VERSION_CHECK(5,0,0)
1776#endif // HANDHELD
1777    // Buttons
1778    buttonRandom->setIcon(GET_ICON("roll"));
1779    buttonSolve->setIcon(GET_ICON("dialog-ok"));
1780    buttonSaveSolution->setIcon(GET_ICON("document-save-as"));
1781    buttonBackToTask->setIcon(GET_ICON("go-previous"));
1782
1783//      action->setIcon(GET_ICON(""));
1784
1785#if QT_VERSION >= QT_VERSION_CHECK(4,6,0)
1786    setToolButtonStyle(Qt::ToolButtonFollowStyle);
1787#endif
1788
1789#ifndef HANDHELD
1790QStatusBar *statusbar = new QStatusBar(this);
1791    statusbar->setObjectName("statusbar");
1792    setStatusBar(statusbar);
1793#endif // HANDHELD
1794
1795#ifdef Q_OS_WINCE_WM
1796    menuBar()->setDefaultAction(menuFile->menuAction());
1797
1798QScrollArea *scrollArea = new QScrollArea(this);
1799    scrollArea->setFrameShape(QFrame::NoFrame);
1800    scrollArea->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
1801    scrollArea->setWidgetResizable(true);
1802    scrollArea->setWidget(tabWidget);
1803    setCentralWidget(scrollArea);
1804#else
1805    setCentralWidget(tabWidget);
1806#endif // Q_OS_WINCE_WM
1807
1808    //! \hack HACK: A little hack for toolbar icons to have a sane size.
1809#if defined(HANDHELD) && !defined(Q_WS_MAEMO_5)
1810#ifdef Q_OS_SYMBIAN
1811    toolBarMain->setIconSize(QSize(logicalDpiX() / 5.2, logicalDpiY() / 5.2));
1812#else
1813    toolBarMain->setIconSize(QSize(logicalDpiX() / 4, logicalDpiY() / 4));
1814#endif // Q_OS_SYMBIAN
1815#endif // HANDHELD && !Q_WS_MAEMO_5
1816QToolButton *tb = static_cast<QToolButton *>(toolBarMain->widgetForAction(actionFileSave));
1817    if (tb != NULL) {
1818        tb->setMenu(menuFileSaveAs);
1819        tb->setPopupMode(QToolButton::MenuButtonPopup);
1820    }
1821
1822//      solutionText->document()->setDefaultFont(settings->value("Output/Font", QFont(DEF_FONT_FAMILY, DEF_FONT_SIZE)).value<QFont>());
1823    solutionText->setWordWrapMode(QTextOption::WordWrap);
1824
1825#ifndef QT_NO_PRINTER
1826    actionFilePrintPreview = new QAction(this);
1827    actionFilePrintPreview->setObjectName("actionFilePrintPreview");
1828    actionFilePrintPreview->setEnabled(false);
1829    actionFilePrintPreview->setIcon(GET_ICON("document-print-preview"));
1830
1831    actionFilePageSetup = new QAction(this);
1832    actionFilePageSetup->setObjectName("actionFilePrintSetup");
1833//    actionFilePageSetup->setEnabled(false);
1834#if QT_VERSION >= QT_VERSION_CHECK(4,6,0)
1835    actionFilePageSetup->setIcon(QIcon::fromTheme("document-page-setup", QIcon(":/trolltech/dialogs/qprintpreviewdialog/images/page-setup-32.png")));
1836#else
1837    actionFilePageSetup->setIcon(QIcon(":/trolltech/dialogs/qprintpreviewdialog/images/page-setup-32.png"));
1838#endif
1839
1840    actionFilePrint = new QAction(this);
1841    actionFilePrint->setObjectName("actionFilePrint");
1842    actionFilePrint->setEnabled(false);
1843    actionFilePrint->setIcon(GET_ICON("document-print"));
1844
1845    menuFile->insertAction(actionFileExit, actionFilePrintPreview);
1846    menuFile->insertAction(actionFileExit, actionFilePageSetup);
1847    menuFile->insertAction(actionFileExit, actionFilePrint);
1848    menuFile->insertSeparator(actionFileExit);
1849
1850    toolBarMain->insertAction(actionSettingsPreferences, actionFilePrint);
1851#endif // QT_NO_PRINTER
1852
1853    groupSettingsLanguageList = new QActionGroup(this);
1854#ifdef Q_WS_MAEMO_5
1855    groupSettingsLanguageList->addAction(actionSettingsLanguageAutodetect);
1856#endif
1857    actionSettingsLanguageEnglish->setData("en");
1858    actionSettingsLanguageEnglish->setActionGroup(groupSettingsLanguageList);
1859    loadLangList();
1860    actionSettingsLanguageAutodetect->setChecked(settings->value("Language", "").toString().isEmpty());
1861
1862    actionSettingsStyleSystem->setData(true);
1863    groupSettingsStyleList = new QActionGroup(this);
1864#ifdef Q_WS_MAEMO_5
1865    groupSettingsStyleList->addAction(actionSettingsStyleSystem);
1866#endif
1867
1868#ifndef HANDHELD
1869    actionSettingsToolbarsConfigure = new QAction(this);
1870    actionSettingsToolbarsConfigure->setIcon(GET_ICON("configure-toolbars"));
1871#endif // HANDHELD
1872
1873    if (hasUpdater()) {
1874        actionHelpCheck4Updates = new QAction(this);
1875        actionHelpCheck4Updates->setIcon(GET_ICON("system-software-update"));
1876        actionHelpCheck4Updates->setEnabled(hasUpdater());
1877        menuHelp->insertAction(actionHelpAboutQt, actionHelpCheck4Updates);
1878        menuHelp->insertSeparator(actionHelpAboutQt);
1879    } else
1880        actionHelpCheck4Updates = NULL;
1881
1882    spinCities->setMaximum(MAX_NUM_CITIES);
1883
1884#ifndef HANDHELD
1885    toolBarManager = new QtToolBarManager(this);
1886    toolBarManager->setMainWindow(this);
1887QString cat = toolBarMain->windowTitle();
1888    toolBarManager->addToolBar(toolBarMain, cat);
1889#ifndef QT_NO_PRINTER
1890    toolBarManager->addAction(actionFilePrintPreview, cat);
1891    toolBarManager->addAction(actionFilePageSetup, cat);
1892#endif // QT_NO_PRINTER
1893    toolBarManager->addAction(actionHelpContents, cat);
1894    toolBarManager->addAction(actionHelpContextual, cat);
1895    toolBarManager->restoreState(settings->value("MainWindow/Toolbars").toByteArray());
1896#else
1897    toolBarMain->setVisible(settings->value("MainWindow/ToolbarVisible", true).toBool());
1898#endif // HANDHELD
1899
1900#ifdef Q_OS_SYMBIAN
1901    // Replace Exit on the right soft key with our own exit action.
1902    // This makes it translatable.
1903    actionRightSoftKey = new QAction(this);
1904    actionRightSoftKey->setSoftKeyRole(QAction::NegativeSoftKey);
1905    connect(actionRightSoftKey, SIGNAL(triggered()), SLOT(close()));
1906    addAction(actionRightSoftKey);
1907#endif
1908
1909    retranslateUi(false);
1910
1911#ifndef HANDHELD
1912    // Adding some eyecandy
1913    if (QtWin::isCompositionEnabled() && settings->value("UseTranslucency", DEF_USE_TRANSLUCENCY).toBool())  {
1914        toggleTranclucency(true);
1915    }
1916#endif // HANDHELD
1917}
1918
1919void MainWindow::toggleSolutionActions(bool enable)
1920{
1921    buttonSaveSolution->setEnabled(enable);
1922    actionFileSaveAsSolution->setEnabled(enable);
1923    solutionText->setEnabled(enable);
1924#ifndef QT_NO_PRINTER
1925    actionFilePrint->setEnabled(enable);
1926    actionFilePrintPreview->setEnabled(enable);
1927#endif // QT_NO_PRINTER
1928}
1929
1930void MainWindow::toggleTranclucency(bool enable)
1931{
1932#ifndef HANDHELD
1933    toggleStyle(labelVariant, enable);
1934    toggleStyle(labelCities, enable);
1935    toggleStyle(statusBar(), enable);
1936    tabWidget->setDocumentMode(enable);
1937    QtWin::enableBlurBehindWindow(this, enable);
1938#else
1939    Q_UNUSED(enable);
1940#endif // HANDHELD
1941}
1942
1943void MainWindow::actionHelpOnlineSupportTriggered()
1944{
1945    QDesktopServices::openUrl(QUrl("http://tspsg.info/goto/support"));
1946}
1947
1948void MainWindow::actionHelpReportBugTriggered()
1949{
1950    QDesktopServices::openUrl(QUrl("http://tspsg.info/goto/bugtracker"));
1951}
1952
1953#ifdef Q_OS_SYMBIAN
1954QSMessageBox::QSMessageBox(QWidget *parent)
1955    : QMessageBox(parent)
1956{
1957    setIcon(QMessageBox::Warning);
1958    setWindowTitle(QApplication::translate("MainWindow", "Unsaved Changes"));
1959    setText(QApplication::translate("MainWindow", "Would you like to save changes in the current task?"));
1960    setStandardButtons(QMessageBox::Save);
1961
1962    QMenu *m = new QMenu(this);
1963    m->addAction(QApplication::translate("QDialogButtonBox", "Discard", "No need to translate this. The translation will be taken from Qt translation files."),
1964                 this, SLOT(discard()));
1965    m->addAction(QApplication::translate("QDialogButtonBox", "Cancel", "No need to translate this. The translation will be taken from Qt translation files."),
1966                 this, SLOT(cancel()));
1967
1968    QAction *o = new QAction(QApplication::translate("QtToolBarDialog", "Actions"), this);
1969    o->setSoftKeyRole(QAction::NegativeSoftKey);
1970    o->setMenu(m);
1971    addAction(o);
1972}
1973
1974void QSMessageBox::cancel(){
1975    done(QMessageBox::Cancel);
1976}
1977
1978void QSMessageBox::discard() {
1979    done(QMessageBox::Discard);
1980}
1981#endif // Q_OS_SYMBIAN
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